DERIVATIVE SPECTROPHOTOMETRY IN THE ANALYSIS OF BROMACIL AND METOXURON IN THE PRESENCE OF SIMAZINE OR PROPAZINE AND HEXAZINONE

Autor:	Irena Baranowska, Celina Pieszko
Rok vydání:	2002
Předmět:	Zero order Chromatography medicine.diagnostic_test Biochemistry (medical) Clinical Biochemistry Simazine First order derivative Derivative Biochemistry Hexazinone Analytical Chemistry chemistry.chemical_compound chemistry Bromacil Spectrophotometry Electrochemistry medicine Solid phase extraction Spectroscopy
Zdroj:	Analytical Letters. 35:473-486
ISSN:	1532-236X 0003-2719
DOI:	10.1081/al-120002681
Popis:	The method for the determination of propazine, simazine, bromacil, hexazinone and metoxuron by zero order and derivative spectrophotometry has been worked out. In the three-component mixtures it was possible to analyse metoxuron and bromacil in the presence of simazine or propazine and hexazinone applying the first order derivative spectra (zero-crossing technique). Detection was at 298.0 nm and 310.0 nm for bromacil and metoxuron, respectively. Calibration graphs were linear from 1 to 50 mg/l for bromacil and 1 to 30 mg/l for metoxuron. Recoveries were 98–120% for water; the RSD (n = 5) were 0.6–4.9%. For soil, recoveries were 90–130% and the RSD (n = 5) were 1.5–14.8%.
Databáze:	OpenAIRE
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